摘要： <?php$canshu=$_SERVER["QUERY_STRING"];if($canshu=="") { die("文件不存在"); }else{$wangzhi="http://pan.baidu.com/share/link?".$canshu;$file=file_get_contents($wangzhi);$pattern='/a><a class="dbtn cancel singledbtn" href=(.*?)id="downFileB 阅读全文